EABOK DRAFT
Public release approved; distribution unlimited
Case No. 04-0104, 04-0105
Table of Contents
Participants.......................................................................................................................... 5
1. Introduction to the Guide................................................................................................ 6
2. EA Charter and Context................................................................................................ 12
2.1 Evolution of the Definition of Enterprise Architecture .......................................... 12
2.2 EA Legislation and Guidance................................................................................. 17
2.2.1 The Evolution of EA-Related Legislation ....................................................... 17
2.2.2 United States Code Sections Relevant to EA .................................................. 19
) Reference Model (NCOW RM)
3.4
2.2.3 Refining EA Guidance through OMB Circulars.............................................. 19
2.2.4 EA Guidance from the CIO Council................................................................ 20
2.5 Historical Developments in EA .............................................................................. 22
3. Foundational Practices and Tools for EA Development............................................... 26
3.1 Enterprise Architecture Frameworks ...................................................................... 28
3.1.1 What is an Enterprise Architecture Framework?............................................. 28
3.1.2 The Zachman EA Framework – Foundational Ideas ....................................... 29
3.1.3 Overview of Major Federally-Sponsored Frameworks ................................... 31
3.1.4 State and Industry-Sponsored Frameworks ..................................................... 40
3.1.5 Comparing Frameworks................................................................................... 41
3.2 Reference Models and Reference Architectures..................................................... 44
3.2.1 OMB Reference Models: The Federal Enterprise Architecture (FEA) ........... 44
3.2.2 Net-Centric Operations and Warfare (NCOW
- Future...................................................................................................................... 57
3.2.3 The Global Information Grid (GIG) – Future.................................................. 57
3.3 Processes for Developing the EA ........................................................................... 58
3.3.1 Introduction...................................................................................................... 58
3.3.2 DODAF Six Step Process ................................................................................ 58
3.3.3 MetaGroup Process Model .............................................................................. 59
3.3.4 Spewak’s Enterprise Architecture Planning .................................................... 60
3.3.5 Practical Guide Process.................................................................................... 62
3.3.6 TOGAF Architecture Development Method (ADM) ...................................... 63
3.3.7 Levis Process for Developing Products for the C4ISR (DODAF) Framework63
3.3.8 Other EA Development Processes ................................................................... 64
Modeling Methods ............................................................................................ 66
3.4.1 Introduction...................................................................................................... 66
3.4.2 The Business Process Model ........................................................................... 67
3.4.3 The Data Model – Future ................................................................................. 82
3.4.4 Other Modeling Methods – Future .................................................................. 82
3.5 Architecture Modeling Tools.................................................................................. 83
3.5.1 Types of Architecture Tools and Users ........................................................... 84
3.5.2 Tool Assessment Criteria ................................................................................. 86
3.5.3 Assessment Approach ...................................................................................... 89
3.5.4 Issues with Choosing a Tool............................................................................ 90
3.5.5 Issues with Organizational Use of Automated Tools ...................................... 91
3.5.6 Recommended Solution ................................................................................... 91
Dummy heading to clear text ............................................................................................ 92
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